Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2023, 15:03

General

  • Target
    Jsreceipt0193617_pdf.js
  • Size 300.0MB
  • Sample230705-se18nsdc73
  • SHA256 ef0bad7386e17039dc9a15a4dc29f46c8c6db9ccdfd8ca75b6970969dbce7402
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vjw0rm

C2
  • http://jsnew9400.duckdns.org:9400

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 19 IoCs
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Jsreceipt0193617_pdf.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:216

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads